Halogen content relative to the chemical and biochemical composition of fifteen marine macro and micro algae: nutritional value, energy supply, antioxidant potency, and health risk assessment.

Environmental Science and Pollution Research International
Gehan M El ZokmGhada F El-Said

Abstract

Marine algae have made a strong contribution to global food security in the future. This study is the first report describing the concentration, pathways, and interactions of halogens in 15 species of marine algae collected from the Eastern Harbor in Alexandria, Egypt, relative to 22 key variables. The relationship between halogen content and chemical and biochemical parameters was studied through multivariate analysis. Among all the tested algae, the iodine content was the lowest (2.53-3.00 μg/g). The range of fluoride and chloride in macroalgae (1.12-1.70 and 0.10-0.46 mg/g) was smaller than that of microalgae (0.10-0.46 and 1.48-3.17 mg/g). The bromide content in macroalgae (0.36-5.45 mg/g) was higher than that in microalgae (0.40-0.76 mg/g). The halogen content in macroalgae was arranged in the order of Br > F > Cl > I. In addition, the biochemical parameters such as carbohydrates, proteins, lipids, and certain heavy metals (Fe, Zn, Cu, Mn, Pb, Ni, Co, Cd, and Cr) were determined. Calories, energy, total antioxidant activity (TAC), K/Na, and ion quotient amounts were estimated. The results showed that the green seaweed species had the highest TAC content. In most of the studied algal species, the calculated ion quotient ref...Continue Reading

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Feb 28, 2021·Environmental Science and Pollution Research International·Azar VahabisaniKenneth Lee

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